AST. Lab Tests Online. https://labtestsonline.org/understanding/analytes/ast/tab/test/. October 29, 2015. Accessed February 15, 2016.
US Department of Veterans Affairs. AST (SGOT). http://www.hepatitis.va.gov/patient/hcv/diagnosis/labtests-AST.asp. Accessed February 2016.
Blood test: hepatic (liver) function panel. KidsHealth. http://kidshealth.org/en/parents/labtest6.html. Accessed February 2016.